<template>
  <div class="table">
    <el-table :data="tableData"
              ref="multipleTable"
              @selection-change="handleSelectionChange">
      <el-table-column type="selection"
                       width="55"
                       align="center"></el-table-column>
      <el-table-column prop="date"
                       label="日期"
                       sortable
                       width="150">
      </el-table-column>
      <el-table-column prop="name"
                       label="姓名"
                       width="120">
      </el-table-column>
      <el-table-column prop="address"
                       label="地址"
                       :formatter="formatter">
      </el-table-column>
      <el-table-column label="操作"
                       width="180"
                       align="center">
        <template slot-scope="scope">
          <el-button type="text"
                     icon="el-icon-edit"
                     @click="handleEdit(scope.$index, scope.row)"
                     title="编辑"></el-button>
          <el-button type="text"
                     icon="el-icon-delete"
                     @click="handleDelete(scope.$index, scope.row)"
                     title="询问删除"></el-button>
          <el-button size="mini"
                     type="danger"
                     @click.native.prevent="deleteRow(scope.$index,tableData)">直接删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>
    <div class="pagination mt20">
      <el-pagination background
                     @current-change="handleCurrentChange"
                     layout="prev, pager, next"
                     :total="1000">
      </el-pagination>
    </div>
    <!-- 编辑弹出框 -->
    <el-dialog title="编辑"
               :visible.sync="editVisible"
               width="30%">
      <el-form ref="form"
               :model="form"
               label-width="50px">
        <el-form-item label="日期">
          <el-date-picker type="date"
                          placeholder="选择日期"
                          v-model="form.date"
                          value-format="yyyy-MM-dd"
                          style="width: 100%;"></el-date-picker>
        </el-form-item>
        <el-form-item label="姓名">
          <el-input v-model="form.name"></el-input>
        </el-form-item>
        <el-form-item label="地址">
          <el-input v-model="form.address"></el-input>
        </el-form-item>

      </el-form>
      <span slot="footer"
            class="dialog-footer">
        <el-button @click="editVisible = false">取 消</el-button>
        <el-button type="primary"
                   @click="saveEdit">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 删除提示框 -->
    <el-dialog title="提示"
               :visible.sync="delVisible"
               width="300px"
               center>
      <div class="del-dialog-cnt">删除不可恢复，是否确定删除？</div>
      <span slot="footer"
            class="dialog-footer">
        <el-button @click="delVisible = false">取 消</el-button>
        <el-button type="primary"
                   @click="confirmDel">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'VTable',
  components: {},
  props: {
    // 查询表格数据的方法
    dataMethod: {
      type: Function,
      require: true,
      default: function () {
        // 样例,必须是返回一个promise方法
        return new Promise(function (resolve) {
          resolve([
            {
              id: '1',
              date: '2016-05-03',
              name: '王小虎',
              address: '上海市普陀区金沙江路 1518 弄'
            }
          ])
        })
      }
    },
    // table每列的名字及对应的字段名
    columns: {
      type: Array,
      require: true,
      default: function () {
        // 样例数据
        return [
          { prop: 'date', label: '日期', unit: '天' },
          { prop: 'name', label: '姓名', type: 'time' },
          { prop: 'address', label: '地址', type: 'date' }
        ]
      }
    }
  },
  data() {
    return {
      tableData: [],
      cur_page: 1,
      checkOptions: [],

      del_list: [],
      editVisible: false,
      delVisible: false,
      form: {
        name: '',
        date: '',
        address: ''
      },
      idx: -1
    }
  },
  created() {
    this.selTableData()
  },
  computed: {},
  mounted() {},
  methods: {
    selTableData() {
      this.dataMethod().then(res => {
        this.tableData = res
      })
    },
    // 分页导航
    handleCurrentChange(val) {
      this.cur_page = val
      this.getData()
    },
    formatter(row, column) {
      return row.address
    },
    handleEdit(index, row) {
      this.idx = index
      const item = this.tableData[index]
      this.form = {
        name: item.name,
        date: item.date,
        address: item.address
      }
      this.editVisible = true
    },
    handleDelete(index, row) {
      this.idx = index
      this.delVisible = true
    },

    handleSelectionChange(val) {
      this.checkOptions = val
    },
    delData() {
      let reList = JSON.parse(JSON.stringify(this.tableData))
      let delIdList = [] // 要删除的id，便于后台做删除
      for (let item of this.checkOptions) {
        reList.splice(
          reList.findIndex(v => v.id === item.id),
          1
        )
        delIdList.push(item.id)
      }
      this.tableData = reList
      this.$message.success(`删除Id ${JSON.stringify(delIdList)} `)
    },
    // 保存编辑
    saveEdit() {
      this.$set(this.tableData, this.idx, this.form)
      this.editVisible = false
      this.$message.success(`修改第 ${this.idx + 1} 行成功`)
    },
    // 确定删除
    confirmDel() {
      this.tableData.splice(this.idx, 1)
      this.$message.success('删除成功')
      this.delVisible = false
    },
    // 直接删除
    deleteRow(index, rows) {
      rows.splice(index, 1)
    }
  }
}
</script>

<style lang="scss">
</style>
